@article{PismaZhETF.68.572, title = {Nonlinear transport through NS junctions due to imperfect Andreev reflection}, author = {Lesovik, G. B. and Blatter, G.}, journal = {πΙΣΨΝΑ Χ φότζ}, volume = {68}, issue = {7}, pages = {572}, year = {1998}, doi = {}, url = {http://jetpletters.ru/ps/0/article_14762.shtml}, }